Oy Lohja Ab

Ralf Graeffe

Tuomo S Suntola

Sven G Lindfors

Arto J Pakkala

Jorma O Antson

Disclosed herein is an electroluminescence structure comprising, in sandwich arrangement, a transparent substrate made of, e.g., glass, a first transparent electrode layer, a luminescence layer, a number of second transparant electrode layers disposed at least partially on the luminescence layer, and a black layer arranged in contact with the luminescence layer and the second electrode layer. The black layer covers the second electrode layer and is in contact with the luminescence layer outside of said second electrode layers. The black layer consists of an insulating layer and a wiring disposed on said insulating layer. Openings reaching the second elctrode layer are defined in the insulating layer opposite said second electrode layers such that the wiring can make electrical contact with the second electrode layers through the openings.

Electroluminescence structure

Disclosed herein is an electroluminescence display component comprising, in sandwich arrangement, a transparent substrate made of, e.g., glass and two thin film structures, each comprising two electrode layers and a luminescence layer disposed between said electrode layers. A light filter layer is disposed between the different thin film structures for realizing a double color display. The light filter layer can be an integral layer made of homogeneous material or a sandwich structure comprising, e.g., two epoxy layers functioning as adhesive layers and a colored tape or similar element disposed between said epoxy layers.

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Porvoo, Finland

Ralf Graeffe